prevent scratch 2 from being upgraded

apps/Scratch 2/install-32

@@ -16,4 +16,7 @@ sudo cp -af ~/scratch2/libpepflashplayer.so /usr/lib/chromium-browser/libpepflas
 echo "Installing scratch2 package..."
 sudo apt install -yf ~/scratch2/scratch2_0.25_armhf.deb || error "Failed to install scratch2 package"
 
+echo "Holding scratch2 package version so it won't upgrade..."
+echo "scratch2 hold" | sudo dpkg --set-selections
+
 rm -rf ~/scratch2

apps/Scratch 2/uninstall

@@ -7,4 +7,7 @@ function error {
   exit 1
 }
 
+echo "Allowing scratch2 package to be uninstallable..."
+echo "scratch2 install" | sudo dpkg --set-selections
+
 sudo apt purge scratch2 -y || error "Failed to uninstall scratch2 package"